html,body{
  width:100%;
  height:100%;
  margin:0;
  padding:0;
}
body,p,dl,dd,ul,ol,li,div,h1,h2,h3,h4,h5,h6,form,input,table,tr,td{
margin:0;
padding:0;
}
body{
font-family: "微软雅黑",Arial;
}
ul,ol{
list-style:none;
}
img{
border: 0;
}
a{
text-decoration: none;
}